Binary double click pen



FIG. 1 is a front elevational view of our design;

FIG. 2 is a left elevational view of our design;

FIG. 3 is a back elevational view of our design;

FIG. 4 is a bottom view of our design; and,

FIG. 5 is a top view of our design. 

The ornamental design for a binary double click pen, as shown and described. 